import java.util.ArrayList;
import java.util.List;


/**
 * This class creates medical history. It takes in an ArrayList of treatment 
 * records and the patient health history.
 * 
 * @author evelyn942
 * @version 1.0 3-10-11
 */


public class MedicalHistory {

	/**
	 * This instance variable instantiates a list of treatmentRecord. The TreatmentRecord list makes up the Medical History class.
	 */
    private List<TreatmentRecord> treatmentRecords;

/**
 * This is the constructor for the class. It instantiates the array list of treatment records to make the medical history class. 
 * Each patient will have a treatment record for every visit. This class is just the compliation of those records.     
 */
    public MedicalHistory(){
      	treatmentRecords = new ArrayList<TreatmentRecord>();
    }
/**
 * This method adds a treatmentRecord from the Treatment record class to the medical history.            
 * @param record This parameter is of type TreatmentRecord. It is pulled in and added to the front of the array list at spot zero.
 */
    public void addTreatmentRecord(TreatmentRecord record){
        treatmentRecords.add(0, record);
    }   
/**
 * This method pulls out the newest treatment record and returns it in the form of a Treatment Record to be accessed by the users. 
 * Doctors and nurses can  access the newest treatment records for reference     
 * @return treatmentRecord at the beginning of the array. TRs are stored from newest (spot 0) to oldest (last spot). easy reference 
 * for all users
 */
    public TreatmentRecord getNewestTreatment(){
    	return treatmentRecords.get(0);
    }
/**
 * This method returns a full list of all the treatment records from the array list to be viewed/accessed by users.    
 * @return treatmentRecord list. Pulls out the arrayList into a list of all the records entered in; used by all users and database
 */
    public List<TreatmentRecord> getTreatmentRecords(){
        return treatmentRecords;
    }    
/**
 * This is the toString method for the treatment Records. It returns the list of treatment records for a patient. 
 * @return     
 */
    public String toString(){
    	return "TREATMENT RECORDS /n TreatmentRecords:" + this.getTreatmentRecords();
    }
}